Portable lighting plant



A. L. CURTIS PORTABLE LIGHTING PLANT Aug. 19 1924. 1,505,702

Original Filed Feb. 5 1921 j g/1s I 9 n a j 12 Z L 2 7/f 7 v 7 7O INVENTQR.

ATTORNEY.

Patented Aug. 19,1924.

ALVIN L. CURTIS, F

PATENT OFFICE.

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Application filed February 5, 1921, Serial in. elastic. Renewed January it, 1924. Serial in. 581,846.

; Plants, ofwhich the following is a specifiengine,

cation, reference being had to the accompanying drawings.

This invention relates to improvements in portable lighting plants. and has for a particular object the provision of a lighting unit which may be conveniently transported from placeto place upon the running board of an automobile or similar conveyance,

The-invention consists in compacting of the arrangement of a lighting set consisting in a generator and an internal combustion drive therefor in such a manner that a com;

plete set shall not be cumbersome or hard to clean and repair. Other objects and advantages of the invention will become apparent throughout the course of the following description.

in the accompanying drawings wherein for the purpose of illustration is shown a preferred embodiment of my invention,

\ Figure 1, the front end elevation of the lightlng set constructed in accordance with my invention .1

Figure 2, is a rear end elevation thereof, parts being broken away, and

Figure 3, is a section on a line 3- 3 of Figure 1.

Referring now. more particularly to the drawings, the numeral 1-0 indicates a base which is preferably made of hollow construction as shown in Figures 2 and 3, in order that it may afiord a receptacle for a liquid fuel for the internal combustion engine forming a source-ofpower. of the set, This base in the smaller sizes of the sets can be made as small as fifteen inches square and has formed upon the n ger surface thereof and extending upwa This crank as usual, embodies the lower half of the bearings 12aof the crank shaft 13 of the the upper half of these hearings being carried by the cylinder block 14.

' The ends of the crank shaft 13 project beyond the bearings 12 at both sides of'the base 11, and one end thereof is rovided with the timer 15 for the control 0 the ene and a fan 16 for cooling the engine,

' which is preferably of the air cooled type.

y therefrom the crank case 11 of an engine.

. case,

I Beneath the opposite end of the crank shaft the base 10 is provided with a segmental recess 17, having the center of the crank shaft shaft, The segmental recess 17 likewise terms a set for a coil r ng 19 provided with the usual spaced coils connected in series with one another and with a terminal 20.

The ring is so secured in the recess that it surrounds the magnets 18 of the shaft 13.

Secured upon the upper surface of the base is a coil'bon 21, which has one terminal connected with the terminal 20 of the coil ring l9 by a wire 22. The opposite terminal ofthe coil box 21 is connected to the timer by wire 23, and the secondary of the coil is connected with the spark plug 25 of the engine by wire 24.

When it is desired to employ the lighting set, the lamps L will be connected in series with t e wire 26, one end of which is conthrough the base 11, crank shaft 13 and magnets 18 to the coil.

From the foregoin' it will be obvious that l have constructe a lighting set which is particularly well adapted for use where a lighting set is desired which may be readily-transported from place toplace as in camping parties, rooms which are to be temporarily'lighted, etc, by reason of the fact that thesimplicity compactness of the structure employed affords an extremely light, complete unit. llt will likewise be obvious that the structure of the same, as hereinabovc set forth, is capable of some change without materially departing from the spirit of my invention, and I accordingly do not limit myself to such specific structure except as hereinafter claimed.

What It claim is:

l, In a device of the type described, a hollow base, an engine base extending upwardlyfrom and formed integrally with the hollow base, an engine supported upon said engine base and embodying a crank shaft,

2. In a device of the type described, a hollow base forming a fuel receptacle, an engine base extending upwardly from and formed integrally With the hollow base, an

internal combustion engine supported upon said engine base and embodying a crank shaft, the ends of the crank shaft projecting beyond the bearings of the engine base, a segmental recess formed in said hollow base beneath one end of said crank shaft, a 10 coil ring secured Within said recess, and radially extending magnets securedand electrically connected to said shaft and rotating Within said coil ring.

In testimony whereof I hereunto aflix my 15 signature.

ALVIN L. CURTIS. 

